A&P CHAPTER 13 – Flashcards

Many upper motor neurons synapse with lower motor neurons in the ___________.

Which of the following sensory functions involves neurons in the posterior root ganglion? Smell Hearing Touch Taste Vision

Which of the following is not considered a region of the spinal cord? Cervical Thoracic Lumbar Pelvic Sacral

Which of the following is not a function associated with the spinal cord? Protect neurons in both the ascending and descending tracts Mediate a reflex, such as the withdrawal of a hand from pain Conduct sensory information up to the brain Conduct motor information down the cord Coordinate the alternating contraction of several muscle groups associated with locomotion

Which of the following fractures would be the least likely to cause a spinal cord injury? A fracture of vertebra C2 A fracture of vertebra C6 A fracture of vertebra T5 A fracture of vertebra T12 A fracture of vertebra L4

The middle layer of the meninges is called the __________.

Epidural anesthesia is introduced to the epidural space between the __________ to block pain signals during pregnancy.

Voluntary motor impulses leave the spinal cord via the _________ of gray matter.

Cerebrospinal fluid fills the space between the __________.

Which of the following is contained within gray matter?

Motor commands are carried by __________ from the brain along the spinal cord.

Second-order neurons synapse with third-order neurons in the __________.

A ganglion is a _________.

There are __________ pairs of spinal nerves.

The connective tissue that surrounds a nerve fascicle is called the __________.

The cervical plexus is the origin of the __________ nerve(s).

Which of the following nerves originates in the lumbosacral plexus? Axillary Sciatic Phrenic Ilioinguinal Obturator

Which of the following is an ascending tract of the spinal cord? Lateral tectospinal tract Medial reticulospinal tract Ventral corticospinal tract Vestibulospinal tract Gracile fasciculus

A mixed nerve consists of both __________ and ___________.

The bundle of nerve roots that occupy the vertebral canal from L2 to S5 is called the __________.

The flexor (withdrawal) reflex employs a ___________, which maintains a sustained contraction

If a bee sting on the right thigh causes a quick involuntary reaction of the right arm, this would be an example of a(n) __________ reflex.

In the patellar tendon reflex arc, the patellar ligament is stretched, which stretches the quadriceps femoris muscle of the thigh. This reflex will cause the quadriceps femoris to __________ and the hamstrings to __________.